Well your doing better than I have, my parts have been on order for over 2 months, this is the worst support site I have ever been on for replies and CoolerMaster support RMA is the worst I have ever dealt with.
Good luck getting your issue figured out.

Not sure if your system is the same as mine, but I had this problem too, I found that one of the 4 pin cables with the little triangle symbol was connected the wrong way, reconnected the right way, lights synced up perfectly.

Dude, I have the same cooler, the cooler is great, but the fans are really bad, plan on replacing those, as far as the warranty, from my experience with CM support I would not count on any help through the support site or warranty, you only have to look through this site to see how many unanswered posts there are, Google CM support / warranty and see how many hits you get.

I purchased a CoolerMaster 240 AIO on 4-24-18 and immediately had issues with the fans, the support ticket has been for the fans has on back order for over a month. WTF?
You cannot tell me that Cooler Master does not have a pair of god dam fans that they can replace the broken ones with, FFS where is the Customer support, to say I'm pissed off is a god dam understatement, useless god dam Cooler Master Support WTF.
YEAH, IM PISSED!

Yeah, I did, parts on back order, really, CoolerMaster, a global company doesn't have a pair of fans, bull*^/* it's a stall tactic hoping I'll eventually forget.
Almost 2 weeks and no update, last f^*#*#g dime cooler master is getting out of me, plenty of other manufacturers making and selling products with superior customer support.
This is an example of what CS should look like, I purchased an NZXT case, the from of the case had a scratch, contacted NZXT CS, following day updated email, 2 days later recieve tracking number of replacement part, 3 days later part arrives, just under a week.

I have the same issue, i have only had the install for about a week, one of my fans sounds like it's grinding, the other one sounds pretty loud (louder than it should) and led for the 1st one is not working, I have been a Coolermaster buyer for many years but feel like the quality recently is not what it used to be, this is not what I expected from a Coolermaster